SOLUTION: Construction:
The Santa Teresa municipal building code specidies that public buildings have a handicapped access ramp with an incline of no more than 10 degrees. What length of
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Question 111998This question is from textbook
: Construction:
The Santa Teresa municipal building code specidies that public buildings have a handicapped access ramp with an incline of no more than 10 degrees. What length of ramp is needed if the ramp climbes 3 ft. 8 inch? Express the answer in feet an inches to the nearest inch.(Hint: work the problem in inches only, then convert the answer to feet and inches.)
This question is from textbook
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
public buildings have a handicapped access ramp with an incline of no more than 10 degrees. What length of ramp is needed if the ramp climbes 3 ft. 8 inch? Express the answer in feet an inches to the nearest inch.(Hint: work the problem in inches only, then convert the answer to feet and inches.)
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Draw the picture of a right triangle with height = 44 inches and
angle opposite that side equal to 10 degrees
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The hypotenuse is the ramp.
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sin(10 degrees) = 44/length of ranp
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length of ramp = 44/sin(10) = 253.39 inches
length of ramp >= 253.39/12 = 21' 1.39 inches
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Cheers,
Stan H.
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